BoilerFaultCodesAlpha E62 Fault Code
The Alpha E62 fault code means: your boiler has lost its internal settings regarding the type of fuel it uses and requires a professional engineer to perform a re-calibration to function safely.. It appears on 6 Alpha models in our database.
Technical description: Indicates the gas type has been changed and that full calibration is now required.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Avoid the next call-out bill
A cover plan would handle faults like E62: no call-out fees, no surprise bills.
Affiliate links. We may earn a commission at no extra cost to you.
Alpha models that show the E62 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Alpha E62 fault code information on this page is sourced and cross-checked against the official Alpha service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026